Add a version of dude.jpg with EXIF info.

Change-Id: Ic6d23d027690d56c97a800d411b125fbe2c4fb7e
Merge branch 'master' of ssh://camlistore.org:29418/camlistore
types: add ByTime sorting, renable a test

Change-Id: Ifc80b66630f86cd88e66dfe68f1133696645f1a7
Merge branch 'master' of ssh://camlistore.org:29418/camlistore
camdebug: add exif mode; camlistore.org/issue/118

Change-Id: Ifb58580fda9ca35e2f709b65f7a8c6f7b7fb3061